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Finding the Fourth Proportional to 86,520.60, 129,683.70 and 44,384.40

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Solution

The fourth proportional to 86,520.60, 129,683.70 and 44,384.40 is: 66,526.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,520.60 : 129,683.70 = 44,384.40 : x
  2. Step 2: Convert to fraction form
    86,520.60/129,683.70 = 44,384.40/x
  3. Step 3: Cross multiply
    86,520.60x = 129,683.70 × 44,384.40
  4. Step 4: Simplify right side
    86,520.60x = 5,755,933,214.28
  5. Step 5: Solve for x
    x = 5,755,933,214.28/86,520.60
  6. Step 6: Final answer
    x = 66,526.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.